Nut-lock.



c. B. GRACEY. NUT LOCK.

APPLICATION FILED JULY 22' I915.

Patented July 17, 1917.

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CHARLES B. GRAGEY, or coaaorotis. P N YLVAN A... s oa 0 N OUR o anus 1y, cop es, or rrrrsrunen, rEnNs LvauIA,

U -Look.

Specification of LettersIatent.

Patented July 1'7, 1917.

Application filed July 22, 1915,. Serial No. 41,231.

To all whom it may concern:

Be it known that 1, CHARLES E. GaAonY, a citizen of the United States, and a resident of Coraopolis, in the county of Allegheny and State of Pennsylvania, have in nted; a ew nd u u I prov m nt in Nut-Locks and I do hereby declare the fol? lowing to, be a full, clear, and exactdescription thereof.

My invention relates to nut locks, has special reference to, the class, of nut-locks in which a spring metal washer or locking plate is employed.

The object of my invention is to provide a cheap, simple and efficient nut-lock which can be used with the usual form of nut, and can also be used with the usual forms of fish-plate and nuts when applied to railroad rails.

To these ends my invention consists, generally stated, in the novel arrangement, construction and combination of parts, as hereinafter more specifically set forth and described and particularly pointed out in the claims hereof.

To enable others skilled in the art to which my invention appertains to construct and use my improved nut-lock,-l will describe the same more fully, referring to the accompanying drawing, in which Figure 1 is a side elevation of a railroad rail joint having my improved nut-lock applied thereto;

Fig. 2 is a cross-section of the same on the line 22 Fig. 1;

Fig. 3 is an enlarged face view of the locking plate;

Fig. l is a rear view of the same;

Fig. 5 is a crosssection of the plate on the line 55 Fig. 3; and

Figs. 6, 7 and 8 are views of other forms of the plate.

Like symbols of reference herein indicate like parts in each of the figures of the drawmg.

As illustrated in the drawing a represents the ordinary rail-road rail and b the usual fish-plates on the sides'of the same, which are placed over the usual joints between the abutting ends of the rails and are held to such rails by screw bolts 0 and nuts 45 engaging therewith in the usual manner.

Between the fish-plate b and each of the nuts cl is the washer or locking plate 1, which is formed of any suitable spring metal such as steel, and is provided with the aperture or hole 2 centrally-of the same. for placing the same around each of the bolts 0. The locking plate 1 is of sufficient length to, pro; v de for the ends being turned inwardly so as to. form they inclined wing portions 2 for bums e n he fi h-P a e b when in position, and extending inwardly and around the bolt hole 2 is the circular flange for engaging such fislrplate when in po: s tion. This flange 3; is formed out of the. locking plate 1 in any suitable manner, such as by drop forging or pressing the metal of the plate, and when so formed is concave: convex in cross-section. The outer face on the. flat or intermediate portion 41, of the looking plate 1 is also provided with a socket 5. of the same shape as the periphery of nuts (Z for the reception of one of such nuts when in position, and in the formation of such socket in the manner of drop forming or pressing, the metal in the plate will be also extended out on the inner face of such portion of the same at such socket, and around the flange 3, as shown at 6.

In the use of my improved nut-lock, after the fish-plates b are placed in position against th rails a and around the bolts 0 through the bolt holes 2 in such plates, a locking plate 1 is placed over each of the bolts 0 through the bolt holes 2 in such plate, and upon each of the nuts (Z being placed on the screw ends 0 of such bolts and screwed down to place against the plate 1, the outer edge or face on the flange 3 will engag the fish-plates and the edges on ends of the plate will bite or engage the fishplate Z). V. hen the nuts d are thus screwed up against the locking plate 1, they will each be seated in the socket 5 in the plate, and by reason of such socket being of the same shape as th periphery of such nuts. the walls 6 forming such socket will prevent the nuts and bolts from turning.

As illustrated in the different figures of the drawing hexagon nuts are shown. but it will be obvious that square, octagon and other shapes of nut can be used, and that one of the ends 2 on the locking plate 1 can be bent at right angles, as at 2 in Fig. 6, for engaging the fish-plate Z If desired the walls of the socket 5 can also be rounded off as shown at 7, in Fig. 7, to more closely conform to the shape of the nuts d.

Various other modifications and changes in the design, construction and application gage the fish-plate by wings upon a further tightening up of the nuts, in case of any loosening up of the parts, and when the 3 locking plate isinposition a strong spring action will be had on the nuts by such plate at all times, so as to cause the threads of the nuts to bind upon the threads of the bolts, while any further tightening up of the nuts will cause the wings and flange on the locking plate to flatten out and engage or bite into the fisli-plate, although a spring action will be had at all times by the looking contact with the nuts, thereby taking 'up' less by Wear of bolts.

I -What I claim as invention and desire to seoure by Letters Patent is:

' 1. In a nut-lock the combination with a bolt and nut, of a resilient plate having formed therein a relatively shallow socket conforming substantially in Shape and size to the inner face and sides of the nut, the upper edges of said socket lying in substantially the same plane.

2. In a nut-lock, the combination with a bolt and a nut having a chamfered engaging face, of a resilient plate having formed therein a relatively shallow socket conforming substantially in shape and size to said chamfered engaging face and to the sides of the nut.

3. In a nut-lock, the combination with a bolt and a nut having a chainfered engag ing face, of a resilient plate having formed therein a relatively shallow socket conforming substantially in shape and size to said chamfered engaging face and to the sides of the nut, the upper edges of said socket lying in substantially the same plane.

In testimony whereof, I, the said CHAnLns O B. GRAoEY, have hereunto set my hand.

CHARLES B. GRACEY.

Witnesses:

J. N. COOKE, I A. D. P..MILLER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

